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1.
Barnetted is a shorter way of saying you're Off your barnett, used in the North West of England by the local beak heads.
Example 1:
Ryan: "Lad I am barnetted here you know"

Example 2:
Clubber: "Got any numbers for a beak?"

Tom: "Yeah lad, here you go, it's power you know, you will be barnetted all night!"
by FlappedJoint September 04, 2012